Within three working days. China Railway Talent Network system needs to handle the request for resume withdrawal, and the system needs to verify the legality of the request for withdrawal, confirm the identity of the applicant and complete the relevant technical processing. Resume withdrawal needs to go through a review process to ensure that the applicant's request is legal and reasonable. The review process includes manual review or automatic system review, which will take some time to complete, so the resume of China Railway Talent Network will be withdrawn within three working days.